Natural factors affecting Habitat
that are positive or negative
What affects the size of a population of animals besides death
from old age? "Limiting factors" influence the number
of animals in a population. Are limiting factors good or bad?
extreme
cold
fires
Younger or weaker animals die
There may be fewer animals born
Takes more energy just to survive
Animals coulld get burned
food & cover burned
Water source may evaporate
Regrowth of nutritional vegetation
Encourages grass cover
Cleans out debris
extreme
snow
drought
Movement is difficult, requires
more energy
Food is difficult, often impossible,
to find
Thermal cover is difficult to reach & often ineffective
